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(b)(4).Evaluation summary: visual and dimensional inspections were performed on the returned device.The reported separation was confirmed, although the reported failure to advance was unable to be replicated in a testing environment as it was based on operational circumstances of the procedure.A review of the lot history record revealed no manufacturing nonconformities that would have contributed to this complaint.Additionally, a review of the complaint history identified no other incidents from this lot.The investigation determined the reported difficulties and patient effect to be related to the patients anatomical conditions.There is no indication of a product quality issue with respect to the design, manufacture, or labeling of the device.
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